Issues with linux-2.6.2

Issues with linux-2.6.2

[Alex Davis]

I have a few issues with 2.6.2. Ths first issue is when upgrading from 2.4, I had to create 
the symlinks:

   ln -s /usr/include/asm /usr/src/linux/include/asm-i386
   ln -s /usr/include/asm-generic /usr/src/linux/include/asm-generic

This requirement was not mentioned in any documentation I could find.

The second issue is when trying to build util-linux-2.11z I get the following error:

cc -pipe -O2 -mcpu=i486 -fomit-frame-pointer -I../lib -Wall -Wmissing-prototypes
-Wstrict-prototypes -I/usr/include/ncurses -DNCH=0   -D_FILE_OFFSET_BITS=64 -DSBINDIR=\"/sbin\"
-DUSRSBINDIR=\"/usr/sbin\" -DLOGDIR=\"/var/log\" -DVARPATH=\"/var\"
-DLOCALEDIR=\"/usr/share/locale\" -O2  -s  blockdev.c   -o blockdev
blockdev.c:70: error: parse error before '[' token
blockdev.c:70: error: initializer element is not constant
blockdev.c:70: error: (near initialization for `bdcms[4].ioc')
blockdev.c:70: error: initializer element is not constant
blockdev.c:70: error: (near initialization for `bdcms[4]')
blockdev.c:73: error: parse error before '[' token
blockdev.c:73: error: initializer element is not constant
blockdev.c:73: error: (near initialization for `bdcms[5].ioc')
blockdev.c:73: error: initializer element is not constant
blockdev.c:73: error: (near initialization for `bdcms[5]')
blockdev.c:76: error: initializer element is not constant
blockdev.c:76: error: (near initialization for `bdcms[6]')
blockdev.c:79: error: initializer element is not constant
blockdev.c:79: error: (near initialization for `bdcms[7]')
blockdev.c:82: error: initializer element is not constant
blockdev.c:82: error: (near initialization for `bdcms[8]')
blockdev.c:85: error: initializer element is not constant
blockdev.c:85: error: (near initialization for `bdcms[9]')
blockdev.c:89: error: initializer element is not constant
blockdev.c:89: error: (near initialization for `bdcms[10]')
blockdev.c: In function `report_device':
blockdev.c:331: error: parse error before '[' token
make: *** [blockdev] Error 1

It seems there is a problem with the BLKBSZGET and the BLKBSZSET macros defined in
linux/include/linux/fs.h.
They both indirectly call the _IOC_TYPECHECK macro, which is defined in
linux/include/asm-386/ioctl.h thusly:

#define _IOC_TYPECHECK(t) \
	((sizeof(t) == sizeof(t[1]) && \
	  sizeof(t) < (1 << _IOC_SIZEBITS)) ? \
	  sizeof(t) : __invalid_size_argument_for_IOC)


The problem is that _IOC_TYPECHECK is being called with a constant value (size_t), making the 
array indexing attempt illegal. Using gcc -E, BLKBSZGET expands to:
(((2U) << (((0 +8)+8)+14)) | (((0x12)) << (0 +8)) | (((112)) << 0) | (((((sizeof(sizeof(int)) == 
sizeof(sizeof(int)[1]) && sizeof(sizeof(int)) < (1 << 14)) ? sizeof(sizeof(int)) : 
       ^^^^^^^^^^^^^^  // illegal.
__invalid_size_argument_for_IOC))) << ((0 +8)+8))) 

Is this a known problem?

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Re: Issues with linux-2.6.2

[Valdis.Kletnieks]

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On Fri, 06 Feb 2004 13:22:05 PST, Alex Davis <alex14641@yahoo.com>  said:
> I have a few issues with 2.6.2. Ths first issue is when upgrading from 2.4, I
 had to create 
> the symlinks:
> 
>    ln -s /usr/include/asm /usr/src/linux/include/asm-i386
>    ln -s /usr/include/asm-generic /usr/src/linux/include/asm-generic
> 
> This requirement was not mentioned in any documentation I could find.

That requirement isn't mentioned because it's an *anti*-requirement.

Don't Do That.  Install what your distro uses for 'glibc-kernheaders' instead.

> The second issue is when trying to build util-linux-2.11z I get the following error:
> 
> cc -pipe -O2 -mcpu=i486 -fomit-frame-pointer -I../lib -Wall -Wmissing-prototypes
> -Wstrict-prototypes -I/usr/include/ncurses -DNCH=0   -D_FILE_OFFSET_BITS=64 -DSBINDIR=\"/sbin\"
> -DUSRSBINDIR=\"/usr/sbin\" -DLOGDIR=\"/var/log\" -DVARPATH=\"/var\"
> -DLOCALEDIR=\"/usr/share/locale\" -O2  -s  blockdev.c   -o blockdev
> blockdev.c:70: error: parse error before '[' token

See? We *TOLD* you not to do that. :)

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Re: Issues with linux-2.6.2

[Ed Tomlinson]

On February 06, 2004 04:35 pm, Valdis.Kletnieks@vt.edu wrote:
> That requirement isn't mentioned because it's an *anti*-requirement.
>
> Don't Do That.  Install what your distro uses for 'glibc-kernheaders'
> instead.

Your solution is above.

Re: Issues with linux-2.6.2

[Andries Brouwer]

On Fri, Feb 06, 2004 at 01:22:05PM -0800, Alex Davis wrote:

> I have a few issues with 2.6.2. Ths first issue is when upgrading from 2.4, I had to create 
> the symlinks:
> 
>    ln -s /usr/include/asm /usr/src/linux/include/asm-i386
>    ln -s /usr/include/asm-generic /usr/src/linux/include/asm-generic
> 
> This requirement was not mentioned in any documentation I could find.

No, because it is wrong. A very unwise thing to do.

> The second issue is when trying to build util-linux-2.11z I get the following error:
> 
> cc -pipe -O2 -mcpu=i486 -fomit-frame-pointer -I../lib -Wall -Wmissing-prototypes
> -Wstrict-prototypes -I/usr/include/ncurses -DNCH=0   -D_FILE_OFFSET_BITS=64 -DSBINDIR=\"/sbin\"
> -DUSRSBINDIR=\"/usr/sbin\" -DLOGDIR=\"/var/log\" -DVARPATH=\"/var\"
> -DLOCALEDIR=\"/usr/share/locale\" -O2  -s  blockdev.c   -o blockdev
> blockdev.c:70: error: parse error before '[' token
> blockdev.c:70: error: initializer element is not constant

And this is your punishment.

Andries

Re: Issues with linux-2.6.2

[Mike Black]

So what's the fix?
I'm trying to recompile util-linux-2.12 on Linux 2.6.2 and getting the same error as Alex.
I'm using linux-libc-headers-2.6.1.3 -- but they don't bother to say how to install them (and I assume they will work for Linux
2.6.2).
And all this is to try and get rid of the "mount version older than kernel" message.

I suppose there's a jolly good reason for splitting the headers but it seems to just present more opportunity to hork things up.

----- Original Message ----- 
From: "Andries Brouwer" <aebr@win.tue.nl>
To: "Alex Davis" <alex14641@yahoo.com>
Cc: <linux-kernel@vger.kernel.org>
Sent: Friday, February 06, 2004 4:37 PM
Subject: Re: Issues with linux-2.6.2


> On Fri, Feb 06, 2004 at 01:22:05PM -0800, Alex Davis wrote:
>
> > I have a few issues with 2.6.2. Ths first issue is when upgrading from 2.4, I had to create
> > the symlinks:
> >
> >    ln -s /usr/include/asm /usr/src/linux/include/asm-i386
> >    ln -s /usr/include/asm-generic /usr/src/linux/include/asm-generic
> >
> > This requirement was not mentioned in any documentation I could find.
>
> No, because it is wrong. A very unwise thing to do.
>
> > The second issue is when trying to build util-linux-2.11z I get the following error:
> >
> > cc -pipe -O2 -mcpu=i486 -fomit-frame-pointer -I../lib -Wall -Wmissing-prototypes
> > -Wstrict-prototypes -I/usr/include/ncurses -DNCH=0   -D_FILE_OFFSET_BITS=64 -DSBINDIR=\"/sbin\"
> > -DUSRSBINDIR=\"/usr/sbin\" -DLOGDIR=\"/var/log\" -DVARPATH=\"/var\"
> > -DLOCALEDIR=\"/usr/share/locale\" -O2  -s  blockdev.c   -o blockdev
> > blockdev.c:70: error: parse error before '[' token
> > blockdev.c:70: error: initializer element is not constant
>
> And this is your punishment.
>
> Andries
> -
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Re: Issues with linux-2.6.2

[Andries Brouwer]

On Mon, Feb 09, 2004 at 12:41:37PM -0500, Mike Black wrote:

> I'm trying to recompile util-linux-2.12 on Linux 2.6.2 and getting
> the same error as Alex.

The kernel is highly backwards compatible. It must be. It would be bad
if all old binaries suddenly stopped working.

It follows that if you translate with old headers, you get binaries that
work, but possibly do not use the latest features.


> I'm using linux-libc-headers-2.6.1.3

Using headers that are newer than the software you are compiling
can hardly improve things.


> And all this is to try and get rid of the "mount version older than kernel"
> message.

Well, the message is right: Linux 2.6.2 has NFS_MOUNT_VERSION 5
and util-linux-2.12 has NFS_MOUNT_VERSION 4.


> So what's the fix?

There are two fixes:

On the one hand that kernel message is a bug - each time we go to a
new NFS version lots of people waste a lot of time worrying about
this unfortunate kernel message, and mount has to spend guessing
the kernel version in order to avoid that message.
So, #if 0 that message and/or submit a patch removing it.

On the other hand, util-linux could use a new release.
Tell the maintainer :-)

Andries

Re: Issues with linux-2.6.2

[Alex Davis]

Recently, Andries Brouwer <aebr () win ! tue ! nl> replied

>And this is your punishment.

Was your response meant to be helpful?? In my opinion it wasn't?
Do you have a solution?

Thanks

-Alex

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Issues with linux-2.6.2

[Alex Davis]

 
 

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